I created a bootable usb using disk creator and attempted to boot from it so i can load the os onto the new drive.
Macbook no entry sign on boot.
I recommend don t change the hard disk right away without checking hard disk you have now.
29 2010 10 33 a m.
Mac os x has several bootup symbols including a universal prohibitory sign that indicates critical files are missing from the boot volume.
You don t say how old your macbook pro is so that could also be a factor.
Macbook pro 13 retina display late 2013.
This means one of two things.
Model a1502 2 4 2 6 or 2 8 ghz dual core intel processor released october 2013.
When starting your mac if you run into a prohibitory sign and the system will not boot there are a couple of things you can try to address the problem.
Seeing a no entry sign after a new crucial m500 installation i just installed a new crucial m500 drive into my 2009 2 0 ghz mac mini.
But i keep seeing the no entry icon.
If your mac is using a firmware password the lock icon appears when you try to start up from another disk or volume such as an external drive or macos recovery enter the firmware password to continue.
Managing a prohibitory sign at os x bootup.